Carriage-curtain-window frame



Feb. 27, 1923.

L. c. NELSON CARRIAGE CURTAIN wmnow fnAME j'dwl 16414725 7265 62 557070,

, Mafia Patented Fee; 27, rear...

LAWRENCE C. NELSON, OF CHICAGO t at; g

. caries ILLINOIS, ASSIGNOR T0 STEWART manome- TURING CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

CARRIAGE-CURTAIN-WIND OVT FRAME.

Application filed October 24, 1921. Serial No. 509,891.

To all whom it may concern.

Be it known that I, LAWRENCE C. NELSON,

a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and the State oflllinois, have invented cer tain new and useful. Improvements in Carriage-Curtainlvindow Frames, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof. Y The purpose of this invention is'to provide an improved construction of a carriage curtain window frame, particularly designed to provide for cushioning the window glass on the frame at both sides, and also to render thegtwo frame members identical in form so that they may be stamped, cast or molded in the same die or mold. It consists in the elements and features of construction shown and described as indicated in the-claims.

In the drawings Figurel is an inner side plan view of one of the frame members of a carriage curtain window embodying this invention.

' Figure 2 is a section at the line, 2+2, on Figure 1, cutting through the entire frame, curtain fabric and glass. .Y 3

Figure 3 is a similar section at the line, '33, on Figure 1, showing the parts dissected and spaced from each other for more clearly distinguishing their respective features.

Figure 4 is a section. at the line, 4-4, on

Figure 1, similar in character to Figure 3.

Figure 5 is a View similar to Figure2, showing a modification. 1

The window frame embodying this invention comprises two metal framje members, 1, which are identical in form, both in contour and cross-section and in the location and distribution therein of the various features for engaging the curtain fabricand the win-' dow glass between them. Each of these frame members, 1, is'rabbeted at one edge as shownat 1 the rabbets facing each other when the two members are mounted face to face with theiglass and between them, and the two rabbets together forming a recess in which the margin of the glass,.3, is engaged throughout its entire periphery. In the face of the rabbet parallel to the plane of the glass, there is formed a groove extending entirely around the frame for lodgment there'- in of a gasket, 5, also extending entirely around the inner marginof the frame,the

two gaskets, 5,5, protruding into the rabbet space for afiording seating for and gripping the glass on both sides as most clearly seen in Figure 2. Preferably the groove is rightangular in cross section the plane which bisects'the right angle being at right-angles to the face of the rabbet in which the groove is formed and, therefore substantially at right angles to the plane of the face of the glass which is engaged by the gasket. .Preferably also these gaskets have their face uponwhich the glass seats flat and in the plane of the face of the glass andat right anglesto said plane bisecting the groove. When thus constructed, the-clamping of the two frame members, 1, 1, together for grip pingthe glass causes the gasket tobe compressed into the right-angle groove directly in the plane bisecting the groove, with tendency to wedge into the groove equally from both sides, and thereby with the tenolency of the gasket to spreadequally both ways. from said bisecting plane onthjesurface of the glass," as a result of the compression by which the glass is gripped.

For gripping the curtain fabricbetween the two frame members at the portion of the width of said frame members outside the periphery of the'glass, there are; formed in the facing surfaces of said frame member,

co-operating male and female memberswhich are engaged with each other when the two frame members are clamped together, engaging the fabric between them in the process, in the recess into which the co-operating projection protrudes. These co-operating male and female features comprise-two sorts, the first sort beingdowell projections, 7, and co-operating sockets, .8, said projections, 7 beinglpreferablyconical and comparatively sharp pointed so that they may penetrate the fabric of the curtain in the process of clamping-the twoframe members together upon the same.

i The other of these co-operating male and female members are respectively elongated slight upraises or flat bosses 9 and correspondingly formed and extended recesses, 10, the recesses being. slightly more extended in the, plane of the face of the frame member than the bosses, so that thefab ric'of the curtain gripped between them. may be pressed into the recesses in the gripping process. These bosses and recesses, .9'and 10, besideithe general function of affording icorn ers, respectively,--that is,

a very secure grip of the frame members upon the curtain, may be positioned at proper points in the contour of the frame, and particularly with respect to its curves, to take up any puckers or slack in the curtain fabric which results from the curves or other irregularities of contour of the frame. This feature, however, is not a part of the present invention, being the subject matter, in part, of my pending application No. 471,844l filed May 28, 1921, and this function of these features is not designedto be illustrated or described in this case.

It is convenient and desirable to locate the dowell pins and sockets as shown in the drawing, within the limits of the bosses and recesses, '9 and 10; and as shown, a dowell projection, 7, is located near each end of each upraise or boss, 9, and a d'owell socket, 8, is similarly located near the end of each of the recesses, 10.

It convenient and desirable, for giving the maximum gripping ellicien'cy to the in terlocked projections and recesses of both sorts, to locate the screws which clamp and secure the two frame members together at the vicinity of these interlocking recesses and projections; and for that purpose substantially at the middle point of each of the elongated bosses and recesses, 9 and 10, and preferably at the inner margin thereof, so as to be substantially at the middle of the width of the frame member there are holes for clamping screws, 12. These holes in one of the frame members are tapped as indi bated at 13, and in the other frame member are countersunk, as indicated at 14, for the thread and head, respectively of the clamp ing screws.

15, 15, are narrow longitudinal upraises or ribs, four in all,-two upon each of the frame members near diagonally opposite corners, so that when the two frame members are applied to each other with the glass and curtain fabric between them, one of these ribs will be found near each corner, and all four inthe same relation to the four inward therefrom on the longer side of the frame. The purpose of these ribs is to grip certain reinforcing straps, 16, which seat in recesses, 15, and assist in sustaining the weight of the frame in the curtain preventing it from distorting the latter. Two dowel-l projections, 17, 1'7, are preferably provided within the length of each of the ribs, 15, symmetrically situated with respect to the ends of the ribs andin the plane face of the frame member at the'point adjacent to the diagonally opposite corners which are without the.

- ri'b s,-the plane faces upon which the ribs grip,-corresponding dowell sockets, 18, are provided for engagement of the dowel-l projections, 17.

An important and characteristic feature of the construction of the frame members in respect to the projection and recesses described, is their distribution and arrangement in the contour of the frame, so that the two frame members being identical in every respect when applied face to face on the curtain and glass engaged between them, will present a recess upon one frame member opposite and adapted for engagement of a corresponding projection on the other frame member. This is accomplished'by distributing the recesses and projections of both sorts in the contour of the frame member symmetrically with respect to the middle in the same mold or die, and that the two frame members may be applied to each other, at either of two relative positions 180 degrees apart about the section of the two axes about which they are symmetrically formed.

Figure 5 shows a modification consisting in substituting cylindrical, and preferably tubular, gaskets, 5*, for the angular gasket shown in the other figures, and correspond ingly changing the form of the grooves in which they are seated from right angular to half circular in cross section.

The specific purpose of the "manner and means shown for holding the glass in the frame is that the edge of the glass shall. not abut against any stopping means, but, on the contrary, the jarring of the glass in its own plane which tends to cause endwise movement, which is the sort of jarring to which a vehicle window is mostexposed, and which is the cause of most breakage of ear= riage curtain windows, is cushioned, not by the edge being stopped on a compressed cushion, but by the flexible yielding of'the rubber gasket which grips the surface of the glass so firmly that the latter does not slip on the gasket, but the latter is stretched and bends in the plane of the edgewise m-ovement which the glass receives from thejan ring; and in such movement the glass cannot strike its edge against the frame at any point. In effect, the glass is held suspended by elastically yielding suspending means consisting of a compressed gasket pressing its vertical surfaces. 1

I claim 1. A carriage curtain window frame comprising two frame members encompassing the window opening, adapted for clamping a window glass between them, each member having at the edge toward the window opening a rabbet Whose depth in the direction of the plane of the glass is such as to provide a substantial depth of unoccupied or clearance space all around the edge of the glass between the same and the peripheral shoulder of the rabbet; yielding gaskets seated upon the other shoulder of the rabbet bearing on the margin of the glass at the opposite sides thereof; and means for securing the two frame members together with the glass and gaskets gripped between them; wherebythe glass is gripped solely by the gaskets and held suspended by the frictional grip of the latter Without edgewise support or lodgment.

2. In the construction defined in claim 1, foregoing, the frame members having grooves in the face or shoulder of the rabbet facing the plane of the glass and encompassing the window opening, the gaskets'being engaged in said grooves for positioning them against lateral movement in the direction passing the window opening, the gaskets be-] ing engaged in said grooves-for positioning them against lateral movement in the d1rection of the plane of the glass, the grooves being angular in cross-section, and the gaskets having the side opposite that which is near the groove flat-faced substantially in the plane of the glass, said face being in a plane substantially at right angles to a. plane bisecting the groove, for affording extended area for frictional graspof the gaskets on the glass and for equalizing the yieldingof plane of the glass under the gaskets in the compression. I p p In testimony whereof, I have ahereunto set my hand at Chicago, Illinois, this 22nd,

day of September, 192

LAWRENCE c. NELSON. 

